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        <h2>
          <span class="refentrytitle">ampdbfs</span>
        </h2>
        <p>ampdbfs — 
       Returns the amplitude equivalent (in 16-bit signed integer scale) of the full scale decibel (dB FS) value <span class="emphasis"><em>x</em></span>.
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      <div class="refsect1">
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        <h2>Description</h2>
        <p>
      Returns the amplitude equivalent of the full scale decibel (dB FS) value <span class="emphasis"><em>x</em></span>. The logarithmic full scale decibel values will be converted to linear 16-bit signed integer values from −32,768 to +32,767.
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        <h2>Syntax</h2>
        <pre class="synopsis"><span class="command"><strong>ampdbfs</strong></span>(x)  (no rate restriction)</pre>
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        <a id="idp89720112"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the ampdbfs opcode. It uses the file <a class="ulink" href="examples/ampdbfs.csd" target="_top"><em class="citetitle">ampdbfs.csd</em></a>.

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          <p class="title">
            <strong>Example 51. Example of the ampdbfs opcode.</strong>
          </p>
          <div class="example-contents">
            <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac     <span class="comment">;;;RT audio out</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if RT audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o ampdbfs.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2


<span class="oblock">instr</span> 1

idb  <span class="op">=</span>  p4
iamp <span class="op">=</span>  <span class="opc">ampdbfs</span>(idb)
asig	<span class="opc">oscil</span> iamp, 220, 1
	<span class="opc">print</span> iamp
	<span class="opc">outs</span>  asig, asig
<span class="oblock">endin</span>


<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>
<span class="comment">;sine wave.</span>
<span class="stamnt">f</span> 1 0 16384 10 1

<span class="stamnt">i</span> 1 0 1 -1
<span class="stamnt">i</span> 1 + 1 -5
<span class="stamnt">i</span> 1 + 1 -6
<span class="stamnt">i</span> 1 + 1 -20
<span class="stamnt">e</span>

<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
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        <p><br class="example-break" />

      Its output should include lines like:
      </p>
        <pre class="screen">
     instr 1:  iamp = 29204.511
     instr 1:  iamp = 18426.801
     instr 1:  iamp = 16422.904
     instr 1:  iamp = 3276.800</pre>
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        <a id="idp89727008"></a>
        <h2>See Also</h2>
        <p>
      <a class="link" href="ampdb.html" title="ampdb"><em class="citetitle">ampdb</em></a>,
      <a class="link" href="dbamp.html" title="dbamp"><em class="citetitle">dbamp</em></a>,
      <a class="link" href="dbfsamp.html" title="dbfsamp"><em class="citetitle">dbfsamp</em></a>,
      <a class="link" href="Zerodbfs.html" title="0dbfs"><em class="citetitle">0dbfs</em></a>
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        <p>New in Csound version 4.10</p>
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